Experimental Study on Axially-Loaded Concrete Columns with Various Sizes Confined by CFRP

Abstract:

Eight concrete columns with various sizes confined by CFRP and four plain concrete columns as the control specimens were axially loaded to failure in order to investigate size effects in concrete columns confined by CFRP. Experimental results show that CFRP can increase considerably both the capacity and ductility of the concrete specimens. Furthermore, the peak stress of the unconfined concrete decreases with the size of the specimens increasing. Similarly, the peak stress of confined concrete decreases with the size of the specimens increasing when the lateral confining stresses are the same. Hence, the size effects should be considered in the stress-strain model of concrete confined by CFRP.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 706-709
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.706
• Online since: September 2013
• Authors: Yue Ling Long, Jiang Zhu
• Keywords: Axial Compression, Confined Concrete, FRP, Size Effect

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